1654798841 has 8 divisors (see below), whose sum is σ = 1758128520. Its totient is φ = 1554553728.

The previous prime is 1654798837. The next prime is 1654798861. The reversal of 1654798841 is 1488974561.

It can be written as a sum of positive squares in 4 ways, for example, as 704371600 + 950427241 = 26540^2 + 30829^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1654798841 - 2² = 1654798837 is a prime.

It is a super-4 number, since 4×1654798841⁴ (a number of 38 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1654798861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 770036 + ... + 772181.

It is an arithmetic number, because the mean of its divisors is an integer number (219766065).

Almost surely, 2^1654798841 is an apocalyptic number.

It is an amenable number.

1654798841 is a deficient number, since it is larger than the sum of its proper divisors (103329679).

1654798841 is a wasteful number, since it uses less digits than its factorization.

1654798841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542283.

The product of its digits is 1935360, while the sum is 53.

The square root of 1654798841 is about 40679.2187855175. The cubic root of 1654798841 is about 1182.8102226808.

The spelling of 1654798841 in words is "one billion, six hundred fifty-four million, seven hundred ninety-eight thousand, eight hundred forty-one".